[FFmpeg-trac] #6119(avcodec:new): h264_nvenc encoder sets wrong DAR if image size is 720x576

[FFmpeg]

#6119: h264_nvenc encoder sets wrong DAR if image size is 720x576
--------------------------------------+-----------------------------------
             Reporter:  user20170202  |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  normal        |                Component:  avcodec
              Version:  unspecified   |               Resolution:
             Keywords:  nvenc aspect  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+-----------------------------------

Comment (by user20170202):

 I was using version 3.2 when coming across the problem, then testet the
 latest release 3.2.2, then even the latest build. I do not have an even
 newer build.

 Here's the console output:
 {{{
 >ffmpeg -i d:\in.mpg -vf scale=720x576 -aspect 16:9 -c:v h264_nvenc -t 15
 d:\out.mp4
 ffmpeg version N-83280-gcba4f0e Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 5.4.0 (GCC)
   configuration: --disable-static --enable-shared --enable-gpl --enable-
 version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2
 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-
 fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass
 --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype
 --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-
 librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-
 libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
 --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
 --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
   libavutil      55. 45.100 / 55. 45.100
   libavcodec     57. 75.100 / 57. 75.100
   libavformat    57. 65.100 / 57. 65.100
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 71.100 /  6. 71.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 Input #0, mpeg, from 'd:\in.mpg':
   Duration: 00:15:00.04, start: 0.620000, bitrate: 3310 kb/s
     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
 File 'd:\out.mp4' already exists. Overwrite ? [y/N] y
 Output #0, mp4, to 'd:\out.mp4':
   Metadata:
     encoder         : Lavf57.65.100
     Stream #0:0: Video: h264 (h264_nvenc) (Main) ([33][0][0][0] / 0x0021),
 yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=-1--1, 2000 kb/s, 25 fps, 12800
 tbn, 25 tbc
     Metadata:
       encoder         : Lavc57.75.100 h264_nvenc
     Side data:
       cpb: bitrate max/min/avg: 0/0/2000000 buffer size: 4000000
 vbv_delay: -1
 Stream mapping:
   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_nvenc))
 Press [q] to stop, [?] for help
 frame=  375 fps=0.0 q=25.0 Lsize=    3622kB time=00:00:14.96
 bitrate=1983.1kbits/s speed=32.4x
 video:3619kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.064272%
 }}}

 Dispaly driver version: nvidia 376.33

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6119#comment:2>
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